Laserfiche WebLink
TRENCHING & BACKFILL 02 2020-1 <br />SECTION 02 2020 <br />TRENCHING AND BACKFILL <br />PART 1 - GENERAL <br />1.01 WORK INCLUDED <br />A. This section covers trenching and backfill requirements for buried piping systems <br />specified in Water System - Section 02 6600; Storm Drainage - Section 02 7200; <br />Sanitary Sewers -Section 02 7300; Irrigation Systems - Section 02 9100, Street <br />and Safety Lighting -Section 16 5000. <br />B. This Section also covers requirements for excavation and for compaction of <br />succeeding layers after backfill has been placed around pipe. <br />1.02 APPLICABLE PUBLICATIONS <br />A. The publications listed below form a part of this specification to the extent <br />referenced. The publications are referred to in the text by the general <br />designation only. <br />B. American Society for Testing and Materials (ASTM) Publications: <br />C - 33 Specification for Concrete Aggregates <br />C - 136 Sieve Analysis of Fine and Coarse Aggregates <br />C - 150 Portland Cement <br />C - 260 Air Entraining Admixtures <br />D - 424 Plastic Limit and Plasticity Index of Soils <br />C - 618 Fly Ash and Raw or Calcined Natural Pozzolan for use as a Mineral <br /> Admixture in Portland Cement <br />D - 1557 Moisture-Density Relations of Soils and Soil Aggregate Mixtures <br /> Using10-lb. (4.54 KG) Rammer and 18-in. (457 mm) Drop <br />D - 2419 Sand equivalent Value of Soils and Fine Aggregate <br />D - 2487 Classification of soils for Engineering purposes <br /> D - 3017 Density of Soil and Soil Aggregate in Place by Nuclear Methods <br /> (Shallow Depth)